... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

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• Observing ? Amateur Astronomers Association of New York
• Observing Events ? Amateur Astronomers Association of New York
• High Line ? Solar Observing ? Amateur Astronomers Association of New York

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Whatcom Association of Celestial Observers is a community based society dedicated to preserving the arts and skills of amateur astronomy. ... Listed Since January 29, 1999 . ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Peterborough Astronomical Association, AstroGuide Listing
• Naperville Astronomical Association, AstroGuide Listing
• Grand Rapids Amateur Astronomical Association, AstroGuide Listing

spaceweb@oulu.fi - last update: 20 September 1998, 2020 UT (RR) . Traveling Convection Vortex (TCV) is a name given to a specific type of daytime magnetic impulsive events observed by high-latitude ground-based magnetometer arrays. Since the most likely source for TCVs is the solar wind , they are considered to be important processes in transfering energy from the solar wind into the magnetosphere . ... For example, one AMPTE Lithium release in the solar wind caused a TCV event . ...

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• Plasmoids [Oulu]
• Plasma sheet high speed flows [Oulu]
• The Sun

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Recently Beaulieu et al. (1998) have started to look for HI in dSph-like systems associated with the Sculptor and Centaurus Groups. So far two out of four objects observed were detected, namely the dS0 NGC 59 in the Sculptor Group and the dSph CEN_41 (Fig. 4) in the Centaurus Group. ...

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• Source size measurement from observed quasar microlensing
• LMC HII Region Luminosities versus Observed Ionizing Stars
• Remnant Molecular Clouds in the Ori OB 1 Association

Next: M.E. Bailey, Director Up: Research Previous: C.S. Jeffery, Research Astronomer Contents . Dr Michael Smith has focused mainly on the earliest stages of stellar evolution: the processes leading to star formation from an initially unstable, collapsing cloud of gas, and the energetic outflows -- jets and winds -- associated with the formation and early evolution of protostars and pre-main-sequence stellar objects. ... Spectacular jets of molecules, however, betray its presence. ...

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• Broadening of Si VIII lines observed in the Solar polar coronal holes
• Explosive Events
• Bright Point Studies

. -!> download . Left: Consequtive explosion of 20 supernovae during 30 Myr. Right: Single hypernova (GRB) explosion with the total energy equivalent to 20 supernovae. The simulation was performed using a 2D Eulerian hydro code. The animation was done using IDL. -!>

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Studying the Ly- Absorber/ Galaxy Connection at 21cm Jessica L. Rosenberg Theorists View of Gas in the Low-z Universe G. L. Bryan M. L. Norman Observers View of Gas in the Low-z Universe Flux Observers View of Gas in the Low-z Universe Damped absorbers (NHI 2x1020) can be observed at 21cm and are associated with galaxy disks Lyman- limit systems (2x10 20 NHI 1017) are associated with galaxy ... Are absorbers probing galaxy halos or filaments? ...

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• Solar System Studies at AO
• CHVCs observed with Arecibo
• Heiles Symposium Presentations

... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...

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• XMM Science Objectives
• How to extract PN spectra of a point-like source and associated matrices
• How to extract MOS spectra of a point-like source and associated matrices using

The STIS and NICMOS calibration pipelines sometimes produce single calibrated images from associations of many exposures. ... The corresponding association table, located in the file with suffix asn and the same rootname as the association product, lists the exposures belonging to the association. ... The exposures belonging to a STIS association all reside in the same file, while the exposures belonging to a NICMOS association reside in separate datasets. ...

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• Dusty HII Regions and Planetary Nebulae
• The Hubble Deep Field - Observing logs
• Introduction to HST Data Handbook v8.0

The problem of solar wind data correlation for the observations onboard several spacecraft is very important for three points of view: . ... This problem is studied now in detail by systematic determination of ion flux and ion velocity data correlations by INTERBALL-1 (IKI group), WIND and IMP 8 (both - MIT group). ... Solar wind plasma correlation lengths from IMP 8, WIND and INTERBALL-1. ... Correlation of solar wind observations onboard several spacecraft: INTERBALL-1, IMP 8 and WIND data. ...

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• Chronology of Magnetospheric Exploration
• Interball Workshop Posters
• Solar Energetic Particles

... From the chain visibility point of view, it is very recommended to look at the Javascript movies , especially if the frame rate can be not regulated in your MPEG player. ... The non-CH-associated large-scale chains visible on the SOHO/EIT images at three wavelengths of 171, 195 and 284 as well as on the MLSO/HAO He I 10830 spectroheliogram of December 16, 1997. ... The SOHO/EIT movies at 171 and 195 show the chain dynamics on June 1-3, 1998. ... Javascript movie (230 KB), SOHO/EIT, 171 . ...

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• Space weather and ecology
• LARGE-SCALE PHENOMENA AT THE SUN ASSOCIATED
• SINGULAR POINTS IN THE SOLAR CHROMOSPHERE

Compilation of cz (radial velocity) measurements . HyperLeda home | Documentation | ... The catalog (table a110 in the database) presents the compilation of redshift of galaxies, z , z = ( - 0 ) / 0 = ( 0 - ) / where and 0 refer the observed and emitted wavelength, and 0 are the observed and emitted frequency. ... For homogeneity of the HyperLEDA, the radial velocity from "radio" convention has to be transferred to redshift using formula cz = V radio / (1 - V radio /c). ... radio measurement . ...

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• Emission-line galaxies
• A CS and NH3 Survey
• Association of images

... Current Issue . ... solar system . ... Cassini makes measurements of Saturnт??s aurora and associated electric current system . ... Now for the first time, a team of planetary scientists has made simultaneous measurements of Saturnт??s night-side aurora, magnetic field, and associated charged particles. ... This is the first time it has been possible to make a direct comparison between Cassini images of the night-side aurora and the magnetic field and particle measurements made by the spacecraft. ...

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• Web Extra: Astronomers animate one of the largest galaxy clusters ever observed
• Record supernova observed | Astronomy.com
• The ESA investigates auroral glow | Astronomy.com

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

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• http://www.gao.spb.ru/english/publ-s/viii-rfs/p081.pdf
• http://www.gao.spb.ru/english/publ-s/viii-rfs/p087.pdf
• http://www.gao.spb.ru/english/as/j2014/presentations/guseva.pdf

... The TRACE images may be used without restrictions in publications of any kind. ... These two images, taken on 18 November 2000 at 15:54UT and 16:11UT, respectively, show such an event: the red circle in the image to the left shows a region where many loops are cooling, with bright loop tops (the intensity scales with the square root of the image to reduce the dynamic range). ... See also a collection of images related to the Sun, other cool stars, and solar-terrestrial effects . ... Images | ...

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• HAEBE Atlas (Abstract)
• CHIANTI atomic database
• Lunar Occultation Group at AAO

... Contacts . 2012: . ... We refined the fundamental parameters of the components, the orbital periods, and the conditions of photospheric heating of the secondary component by the ultraviolet radiation of the hot component. ... The observations of the star clusters associated with ultra-luminous x-ray sources (ULXs) in four galaxies on the 6-meter and VLT telescopes have shown that all the ULXs are located within 200pc of very young star clusters (younger than 5 million years). ... Archive . ...

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• HD965
• Speckle interferometry of magnetic stars
• Solar eclipse 2015

IFP gallery SCORPIO (since 2000). Here some data observed on the 6m telescope with IFP installed in the SCORPIO focal reducer are presented. ... Velocity field . Mkn 1157 was observed 1 Sep. 2002 in the Ha emission line. Texp =32x240 sec, seeing 1.5", IFP260. ... This galaxy was observed September, 23 2000 in the Ha emission line, Texp=32x120 sec, seeing 2.5", IFP260. ... PV Cep was observed at the 6m telescope in May, 25 2003 in the [SII] 6716A with IFP501, Texp=36x200 sec, seeing 1.0". ...

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• Fabry-Perot Interferometer: Gallery Old
• These galaxies were observed (Project: vortex)
• Emission molecular bands

... Public . Science . ... Science Users Information > Observing with ESO Telescopes > Phase 3 > Data Releases . ... Public Surveys . ... Data Releases . ... Data delivered by ESO Public Survey projects: . ... Data Release . ... Deep co-added, resampled images and associated source lists per band (3rd data release) . ... ZYJHKs images and associated source lists of completed survey tiles covering ~690 sq.deg . ... YJKs images and associated source lists for 7 survey tiles (4th updating data release) . ...

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• Velocity Variation of mu Arae Observed by HARPS | ESO
• Observed Velocity Variation of mu Arae | ESO
• ESO - The Origin and Fate of the Sun: Evolution of Solar-mass Stars Observed

... Right: cold gas traced by [CII] emission (red) accreting onto a primeval galaxy (green) at z=7.1 ( Maiolino et al. 2015 ) (image credit: ALMA Press Release ) . ... 2010 , Cicone, Maiolino et al. ... 2012 , Cicone, Maiolino et al. ... Right: observed distribution of the average stellar metallicities of passive and star forming galaxies in the local universe, supporting starvation/strangulation as primary quenching mechanism in low/intermediate mass galaxies ( Peng, Maiolino, Cochrane 2015 ). ...

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• Inference of Coefficients for Use in Phase Correction Bojan Nikolic web pages
• Example of an OOF analysis for the GBT
• Sub-mm and radio observations of water maser sources

Peremennye Zvezdy", . ... Min . ... 2MASS J16480306-6715178 . ... The variable star catalogued as ASAS 164802 6715.2 by Pojmanski (2002) was found to display two types of eclipsing variability by Pilecki and Szczygiel (2007). ... The comparison stars (identified in the finding chart) used were: . ... The data for Star A and B has been obtained using Comp Star 2 between HJD 2455709.956 and 2455710.089 and between 2455718.005 and 2455718.096. All other data was obtained using Comp Star 1. ...

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• Large Eruptive Prominence Imaged by SDO
• XWare > APOD